Per Nilsson
type: MusicGroup
genre: progressive metal
popularity: 7
followers: 624
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xda7cd38fac6094227e96baedbc9a29aad397c130afb82a110e28ab627004bfd6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/88855d79-065e-44ea-8c5e-030c1e99af76.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/88855d79-065e-44ea-8c5e-030c1e99af76.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/88855d79-065e-44ea-8c5e-030c1e99af76
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xda7cd38fac6094227e96baedbc9a29aad397c130afb82a110e28ab627004bfd6","name":"Per Nilsson","registered_at":"2026-06-17T13:18:40Z","symbol":"NIM1407475","token_address":"0x3e88d7103b56cf1e784d540c38bb4f30214bc49d","type":"artist","uuid":"88855d79-065e-44ea-8c5e-030c1e99af76"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7cd38fac6094227e96baedbc9a29aad397c130afb82a110e28ab627004bfd6. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/88855d79-065e-44ea-8c5e-030c1e99af76.json and https://artists.proofprofile.net/proofs/artist/88855d79-065e-44ea-8c5e-030c1e99af76.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xda7cd38fac6094227e96baedbc9a29aad397c130afb82a110e28ab627004bfd6","name":"Per Nilsson","registered_at":"2026-06-17T13:18:40Z","symbol":"NIM1407475","token_address":"0x3e88d7103b56cf1e784d540c38bb4f30214bc49d","type":"artist","uuid":"88855d79-065e-44ea-8c5e-030c1e99af76"}
album: Always
  type: MusicAlbum
  date published: 2016
  track: Always
    type: MusicRecording
    duration: PT5M32S
    duration ms: 332583
    explicit: false
    by artist: Per Nilsson
    in album: Always
      type: MusicAlbum
      date published: 2016
    genre: progressive metal
    isrc code: CAHQJ2593641
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T20:00:46+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf86d11da4f17c40445a76f9960e4013bab3f1e6af8d5b3e255cd3fb97a4d8f3c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956560
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956560
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAHQJ2593641
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T23:28:02Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86d11da4f17c40445a76f9960e4013bab3f1e6af8d5b3e255cd3fb97a4d8f3c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAHQJ2593641.
      date published: 2026-07-03T23:28:02Z
    audio: Always
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.969
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.538
      additional property: Energy
        type: PropertyValue
        value: 0.684
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.191
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.917
      additional property: Liveness
        type: PropertyValue
        value: 0.115
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.253
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.412
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Blast Radius
  type: MusicAlbum
  date published: 2024-10-21
  track: Blast Radius
    type: MusicRecording
    duration: PT4M57S
    duration ms: 297022
    explicit: false
    by artist: Per Nilsson
    in album: Blast Radius
      type: MusicAlbum
      date published: 2024-10-21
    genre: progressive metal
    isrc code: CBEYJ2400428
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T15:23:49+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8fa8a46138799a460e20f625df2a809d609ff7f25f3c35d368c2e1f835a29c57
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958169
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958169
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CBEYJ2400428
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T18:25:54Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa8a46138799a460e20f625df2a809d609ff7f25f3c35d368c2e1f835a29c57. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:25:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CBEYJ2400428.
      date published: 2026-07-15T18:25:54Z
    audio: Blast Radius
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 139.956
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.413
      additional property: Energy
        type: PropertyValue
        value: 0.891
      additional property: Speechiness
        type: PropertyValue
        value: 0.045
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.932
      additional property: Liveness
        type: PropertyValue
        value: 0.086
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: The River That Remembers Nothing

Valence (Positivity)
type: PropertyValue
value: 0.129

Loudness (dB)
type: PropertyValue
value: -8.039

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

The River That Remembers Nothing
type: MusicAlbum
date published: 2025-08-22